Electrochemical characterization of La0.6Ca0.4Fe0.8Ni0.2O3-δ perovskite cathode for IT-SOFC

N. Ortiz-Vitoriano; Anne Hauch; I. Ruiz De Larramendi; Carlos Bernuy-Lopez; Ruth Knibbe; T. Rojo

doi:10.1016/j.jpowsour.2013.03.121

Electrochemical characterization of La_0.6Ca_0.4Fe_0.8Ni_0.2O_3-δ perovskite cathode for IT-SOFC

N. Ortiz-Vitoriano, Anne Hauch, I. Ruiz De Larramendi, Carlos Bernuy-Lopez, Ruth Knibbe, T. Rojo

Department of Energy Conversion and Storage

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Electrolyte supported symmetric cells featuring La0.6Ca 0.4Fe0.8Ni0.2O3 (LCFN) electrodes are studied by electrochemical impedance spectroscopy. The aim is to describe the polarization losses of this mixed ionic electronic conductor electrode at various cell operating conditions for cells sintered at different temperatures. An equivalent circuit describing the cathode polarization resistances was constructed from analyzing impedance spectra recorded at different oxygen partial pressures and temperatures. Favorable oxygen reduction reaction properties are demonstrated for the LCFN cell sintered at 750 C with a polarization resistance of 0.05 Ω cm2 at an operating temperature of 800 C in pure oxygen. © 2013 Elsevier B.V. All rights reserved.

Original language	English
Journal	Journal of Power Sources
Volume	239
Pages (from-to)	196-200
ISSN	0378-7753
DOIs	https://doi.org/10.1016/j.jpowsour.2013.03.121
Publication status	Published - 2013

Keywords

Calcium
Electrochemical impedance spectroscopy
Electrolytic reduction
Electrophoretic coatings
Nickel
Sintering
Solid oxide fuel cells (SOFC)
Spectroscopy
Cathodes

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10.1016/j.jpowsour.2013.03.121

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title = "Electrochemical characterization of La0.6Ca0.4Fe0.8Ni0.2O3-δ perovskite cathode for IT-SOFC",

abstract = "Electrolyte supported symmetric cells featuring La0.6Ca 0.4Fe0.8Ni0.2O3 (LCFN) electrodes are studied by electrochemical impedance spectroscopy. The aim is to describe the polarization losses of this mixed ionic electronic conductor electrode at various cell operating conditions for cells sintered at different temperatures. An equivalent circuit describing the cathode polarization resistances was constructed from analyzing impedance spectra recorded at different oxygen partial pressures and temperatures. Favorable oxygen reduction reaction properties are demonstrated for the LCFN cell sintered at 750 C with a polarization resistance of 0.05 Ω cm2 at an operating temperature of 800 C in pure oxygen. {\textcopyright} 2013 Elsevier B.V. All rights reserved.",

keywords = "Calcium, Electrochemical impedance spectroscopy, Electrolytic reduction, Electrophoretic coatings, Nickel, Sintering, Solid oxide fuel cells (SOFC), Spectroscopy, Cathodes",

author = "N. Ortiz-Vitoriano and Anne Hauch and {Ruiz De Larramendi}, I. and Carlos Bernuy-Lopez and Ruth Knibbe and T. Rojo",

year = "2013",

doi = "10.1016/j.jpowsour.2013.03.121",

language = "English",

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journal = "Journal of Power Sources",

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T1 - Electrochemical characterization of La0.6Ca0.4Fe0.8Ni0.2O3-δ perovskite cathode for IT-SOFC

AU - Ortiz-Vitoriano, N.

AU - Hauch, Anne

AU - Ruiz De Larramendi, I.

AU - Bernuy-Lopez, Carlos

AU - Knibbe, Ruth

AU - Rojo, T.

PY - 2013

Y1 - 2013

N2 - Electrolyte supported symmetric cells featuring La0.6Ca 0.4Fe0.8Ni0.2O3 (LCFN) electrodes are studied by electrochemical impedance spectroscopy. The aim is to describe the polarization losses of this mixed ionic electronic conductor electrode at various cell operating conditions for cells sintered at different temperatures. An equivalent circuit describing the cathode polarization resistances was constructed from analyzing impedance spectra recorded at different oxygen partial pressures and temperatures. Favorable oxygen reduction reaction properties are demonstrated for the LCFN cell sintered at 750 C with a polarization resistance of 0.05 Ω cm2 at an operating temperature of 800 C in pure oxygen. © 2013 Elsevier B.V. All rights reserved.

AB - Electrolyte supported symmetric cells featuring La0.6Ca 0.4Fe0.8Ni0.2O3 (LCFN) electrodes are studied by electrochemical impedance spectroscopy. The aim is to describe the polarization losses of this mixed ionic electronic conductor electrode at various cell operating conditions for cells sintered at different temperatures. An equivalent circuit describing the cathode polarization resistances was constructed from analyzing impedance spectra recorded at different oxygen partial pressures and temperatures. Favorable oxygen reduction reaction properties are demonstrated for the LCFN cell sintered at 750 C with a polarization resistance of 0.05 Ω cm2 at an operating temperature of 800 C in pure oxygen. © 2013 Elsevier B.V. All rights reserved.

KW - Calcium

KW - Electrochemical impedance spectroscopy

KW - Electrolytic reduction

KW - Electrophoretic coatings

KW - Nickel

KW - Sintering

KW - Solid oxide fuel cells (SOFC)

KW - Spectroscopy

KW - Cathodes

U2 - 10.1016/j.jpowsour.2013.03.121

DO - 10.1016/j.jpowsour.2013.03.121

M3 - Journal article

SN - 0378-7753

VL - 239

SP - 196

EP - 200

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -